Handguns

Colt Python

A Treasury agent discovers a concealed Colt Python in the residence of Christian Wolff (Ben Affleck). She notes that the serial number has been filed off and unloads it offscreen, saying that it is loaded with Hydra-Shoks.

Heckler & Koch HK45T

What appears to be a Heckler & Koch HK45T fitted with a suppressor is seen in the hands of Brax (Jon Bernthal). The Tru-Dot sights visible in the production still denote that this is a factory HK45T model.

Heckler & Koch HK45T - .45ACP

Another closeup showing the threaded barrel sticking out.

Closeup of the suppressor being attached to the pistol. Note the forward angle on the trigger guard which differentiates it from other HK models.

Brax's HK45 sitting on the dash of a car with a Knight's Armament suppressor.

Production still clearly showing the longer rail of the fullsized HK45 model and the tru-dot sights

Heckler & Koch USP

Para-Ordnance Black Ops 1911 14.45

Wolff uses a Para-Ordnance Black Ops 1911 throughout the film. This pistol is fitted with a threaded barrel, magazine well, a Surefire X300 weaponlight, and a SilencerCo Osprey suppressor and is the 14.45 variant with a 14rd doublestack magazine. It is not the Combat model as the gun lacks taller sights.

Rifles/Carbines

Daniel Defense MK18

Wolff uses what appears to be a Daniel Defense DDM4 MK18 fitted with a foregrip, light, Magpul MOE stock, suppressor and Leupold HAMR/Delta point optic sight during the final shootout. The rifle can be seen earlier in the back of Wolff's Airstream trailer.

Factory Daniel Defense MK18 - 5.56x45mm NATO

Wolff opens fire with his rifle.

Wolff firing his Daniel Defense DDM4 MK18. The Leupold HAMR/Delta point combo is clearly seen up top. The Flashlight appears to be a Surefire scout light and the suppressor looks to be an AAC model.

The Daniel Defense DDM4 MK18 can be seen on the left wall. The Leupold HAMR/Delta point optic combo makes it stand out. If you look closely you can see white text on the side of the receiver. This is an exclusive marking style to Daniel Defense. Between that and the barrel length we can see this is a DD MK18.

Weapons Cache

Special

Actor Ben Affleck underwent firearms training prior to taking on the role in the film.

Ben Affleck training at International Tactical Training Seminars for The Accountant. To the left of Affleck is Scott Reitz, a 30 year veteran of the LAPD and a firearms instructor who has trained with US Army Delta and Seal Team Six.